<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form th:action="@{/login}">
        <input type="hidden" th:value="${url}" name="redirect_url">
        用户名：<input type="text" name="username"><br />
        密&emsp;码：<input type="password" name="password"><br />
        <input type="submit" value="登录"/>
    </form>
</body>
</html>